Parts location

System diagram

2Gr-fe intake
Intake air control valveRemoval
1. REMOVE ENGINE AND TRANSAXLE
HINT:
(See page EM-26)
2. REMOVE AUTOMATIC TRANSMISSION WITH
TRANSFER
HINT:
(See page AX-164)
3. REMOVE TRANSFER ASSEMBLY
HINT:
(See page TF-8)
4. REMOVE CTR DIFFERENTIAL LOCK SLEEVE
HINT:
(See page TF-13)
5. REMOVE TRANSFER CASE OIL SEAL
(a) Using SS ...
Brake Switch
DESCRIPTION
The stop light switch is a duplex system that transmits two signals: STP and
ST1-. These two signals are
used by the ECM to monitor whether or not the brake system is working properly.
If the signals, which
indicate the brake pedal is being depressed or released, are detected ...
General information
A large number of ECU controlled systems are used in the
SIENNA. In general, ECU controlled systems are considered
to be very intricate, requiring a high level of technical
knowledge to troubleshoot. However, most problem checking
procedures only involve inspecting the ECU controlled
system's c ...